Notes - Segment Information, Etc.
| Concept | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                47,219,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,469,418,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,512,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,876,037,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,361,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,857,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,653,088,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,119,561,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,853,268,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,308,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,934,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,625,919,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                445,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                315,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                129,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                907,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                467,364,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                589,956,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                122,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |